Question: Who is the spouse of Johnny Cash that died in 1966?
Paraphrase: Who was Johnny Cash's spouse that died in 1966?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q42775 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1966')) }